6 research outputs found

    The use of the harmony search method in chemical kinetics problems: a literature review

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    This paper considers and reviews the publications about the Harmony search algorithm and applications of the Harmony Search algorithm. It approaches to achieve perfect results in a huge number of optimization problems. The paper analyses the literature on the application of Harmony Search algorithm to supply the future research directions. That Harmony search algorithm will be used to calculate the reaction kinetic parameters.The reported study was funded by RFBR, project number 19-37-60014

    Mathematical modeling of the reaction of low-temperature steam reforming mixtures of light hydrocarbons at different flow rates

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    ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ комплСксноС матСматичСскоС ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Π½ΠΈΠ·ΠΊΠΎΡ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Π½ΠΎΠΉ ΠΏΠ°Ρ€ΠΎΠ²ΠΎΠΉ конвСрсии смСсСй Π»Π΅Π³ΠΊΠΈΡ… ΡƒΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄ΠΎΠ² (C1 – C5). Рассчитаны кинСтичСскиС ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ‹ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ ΠΏΠ°Ρ€ΠΎΠ²ΠΎΠΉ конвСрсии ΠΌΠ½ΠΎΠ³ΠΎΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ‚Π½Ρ‹Ρ… смСсСй. ΠŸΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Π½ΠΈΠ·ΠΊΠΎΡ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Π½ΠΎΠΉ ΠΏΠ°Ρ€ΠΎΠ²ΠΎΠΉ конвСрсии смСсСй Π»Π΅Π³ΠΊΠΈΡ… ΡƒΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄ΠΎΠ² ΠΏΡ€ΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… скоростях ΠΏΠΎΡ‚ΠΎΠΊΠ°Ρ… Π½Π° ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΠΌ ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°Ρ‚ΠΎΡ€Π΅ НИАП-07-05. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌ ΠΈ комплСкс ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ для модСлирования Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Π½ΠΈΠ·ΠΊΠΎΡ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Π½ΠΎΠΉ ΠΏΠ°Ρ€ΠΎΠ²ΠΎΠΉ конвСрсии Π»Π΅Π³ΠΊΠΈΡ… ΡƒΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄ΠΎΠ². A complex mathematical modeling of the reaction of low-temperature steam reforming of light hydrocarbons (C1 – C5) mixtures was carried out. The kinetic parameters of the reaction of steam reforming of multicomponent mixtures are calculated. A simulation of the reaction of low-temperature steam reforming of light hydrocarbon mixtures at different flow rates on the industrial catalyst NIAP-07-05 was carried out. An algorithm and a set of programs for modeling the reaction of low-temperature steam reforming of light hydrocarbons has been developed

    Numerical modeling of intramolecular transformations of orto-substituted aromatic nitrozoxides

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    Π Π°Π±ΠΎΡ‚Π° посвящСна исслСдованию Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ Π³ΠΈΠ±Π΅Π»ΠΈ ароматичСских нитрозооксидов, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‚ ΡƒΠ½ΠΈΠΊΠ°Π»ΡŒΠ½Ρ‹ΠΌΠΈ свойствами, благодаря Π½Π°Π»ΠΈΡ‡ΠΈΡŽ Ρƒ Π½ΠΈΡ… цис- ΠΈ транс- ΠΈΠ·ΠΎΠΌΠ΅Ρ€ΠΈΠΈ. ΠšΠΎΠ½ΡΡ‚Π°Π½Ρ‚Ρ‹ скорости Π³ΠΈΠ±Π΅Π»ΠΈ ΠΈΠ·ΠΎΠΌΠ΅Ρ€ΠΎΠ² нитрозооксидов ΡΠ²Π»ΡΡŽΡ‚ΡΡ эффСктивными, Ρ‚.Π΅. ΠΎΠΏΠΈΡΡ‹Π²Π°ΡŽΡ‚ ΡΠ»ΠΎΠΆΠ½ΡƒΡŽ ΡΠΎΠ²ΠΎΠΊΡƒΠΏΠ½ΠΎΡΡ‚ΡŒ элСмСнтарных ΠΏΡ€Π΅Π²Ρ€Π°Ρ‰Π΅Π½ΠΈΠΉ – ΠΊΠΎΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΈ Π½Π΅ΠΎΠ±Ρ€Π°Ρ‚ΠΈΠΌΡ‹Ρ…. Для числСнного Π°Π½Π°Π»ΠΈΠ·Π° процСсса Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π° ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ° вычислСния кинСтичСских ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ. Π’Π²ΠΈΠ΄Ρƒ большого количСства ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ, Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅ ΠΎΠ±Ρ€Π°Ρ‚Π½ΠΎΠΉ кинСтичСской Π·Π°Π΄Π°Ρ‡ΠΈ Ρ‚Ρ€Π΅Π±ΠΎΠ²Π°Π»ΠΎ Π±ΠΎΠ»ΡŒΡˆΠΈΡ… Π²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Ρ… Π·Π°Ρ‚Ρ€Π°Ρ‚. Π’ связи с этим ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΠ»ΠΈΡΡŒ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠ°Ρ€Π°Π»Π»Π΅Π»ΡŒΠ½Ρ‹Ρ… вычислСний, Ρ‡Ρ‚ΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΎ ΡΠΎΠΊΡ€Π°Ρ‚ΠΈΡ‚ΡŒ врСмя вычислСний ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π½ΠΎ Π² 10 Ρ€Π°Π·. Π‘ ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹Ρ… Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² построСна кинСтичСская модСль Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ, Π²ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‰Π°Ρ Π² сСбя ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Π΅ энСргии Гиббса, константы элСмСнтарных стадий Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ ΠΈ эффСктивныС константы расходования ΠΈΠ·ΠΎΠΌΠ΅Ρ€ΠΎΠ² нитрозооксидов. Анализ Π΄ΠΎΠΊΠ°Π·Π°Π» Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ ΡƒΡ‡Π΅Ρ‚Π° внутримолСкулярных ΠΏΡ€Π΅Π²Ρ€Π°Ρ‰Π΅Π½ΠΈΠΉ ароматичСских нитрозоксидов Π² Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ ΠΈΡ… Π³ΠΈΠ±Π΅Π»ΠΈ.//The work is devoted to the investigation of the deacay reaction of aromatic nitrosooxides, which have unique properties due to the presence of cis and trans isomerism. The rate constants of nitrosooxides isomer decay are effective, i.e. incluse a complex set of elementary transformations – conformational and irreversible. For numerical analysis of the process, a software has been developed for calculating the kinetic parameters of the reaction. In view of the large number of reaction parameters, the solution of the inverse kinetic problem required a large amount of time. In connection with this, parallel computing technologies were used, which allowed to reduce the calculation time approximately in 10 times. With the help of the developed algorithms, a kinetic model of the reaction is constructed, which includes optimized Gibbs energies, constants of elementary reaction stages and effective constants of nitroso isomers consumption. The analysis proved the necessity of taking into account intramolecular transformations of aromatic nitroxides in the reaction of their consuption.Π Π°Π±ΠΎΡ‚Π° Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° ΠΏΡ€ΠΈ финансовой ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠ΅ Π³Ρ€Π°Π½Ρ‚Π° 15-07-01764 "ΠžΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½ΠΎΠ΅ ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ химичСскими рСакциями мСталлокомплСксного ΠΊΠ°Ρ‚Π°Π»ΠΈΠ·Π°"

    Machine learning in the problem of recognition of pitting corrosion on aluminum surfaces

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    Основная ΡΡ‚Π°Ρ‚ΡŒΡΠ Π°Π±ΠΎΡ‚Π° посвящСна ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ΅ ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ ΠΈ количСствСнной ΠΎΡ†Π΅Π½ΠΊΠ΅ ΠΏΠΈΡ‚Ρ‚ΠΈΠ½Π³ΠΎΠ²ΠΎΠΉ ΠΊΠΎΡ€Ρ€ΠΎΠ·ΠΈΠΈ. ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ – Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ провСдСния экспСримСнта ΠΈ Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° комплСкса ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌ для оцСнивания ΠΈ прогнозирования ΠΊΠΎΡ€Ρ€ΠΎΠ·ΠΈΠΎΠ½Π½Ρ‹Ρ… процСссов Π½Π° повСрхности алюминия. Π Π°Π±ΠΎΡ‚Π° Π΄Π°Π½Π½ΠΎΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ ΠΈ относящихся ΠΊ Π½Π΅ΠΉ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² ΠΈ систСм рассматриваСтся Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π΄Π°Π½Π½Ρ‹Ρ… процСсса ΠΊΠΎΡ€Ρ€ΠΎΠ·ΠΈΠΈ алюминия с Π²ΠΎΠ΄ΠΎΡ€ΠΎΠ΄Π½ΠΎΠΉ дСполяризациСй. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Ρ€Π°Π±ΠΎΡ‚Ρ‹ ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ для исслСдования ΠΊΠΎΡ€Ρ€ΠΎΠ·ΠΈΠΎΠ½Π½Ρ‹Ρ… процСссов ΠΈ ΠΈΡ… ΠΌΠ΅Ρ…Π°Π½ΠΈΠ·ΠΌΠΎΠ² Π½Π° основС Π²ΠΈΠ·ΡƒΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° экспСримСнта. The work is devoted to the problem of corrosion identification and quantitative evaluation of corrosion damage. The purpose of the work is to develop a methodology for conducting an experiment and a set of parallel programs for estimating and predicting corrosion processes on the aluminum surface. This technique is considered on the example of processing data of the corrosion process of aluminum with hydrogen depolarization. The results of the work can be used to study the corrosion processes and their mechanisms on the basis of a visual analysis of the experiment

    The apply of machine learning methods for watercut prediction on the projected wells

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    Π—Π° врСмя эксплуатации нСфтяных мСстороТдСний гСнСрируСтся большоС количСство Π΄Π°Π½Π½Ρ‹Ρ…. Π­Ρ‚ΠΈ Π΄Π°Π½Π½Ρ‹Π΅ ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ ΠΊΠ°ΠΊ ΠΈΠ½Ρ‚Π΅Ρ€ΠΏΡ€Π΅Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹ΠΌΠΈ спСциалистом, Ρ‚Π°ΠΊ ΠΈ «сырыми», ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹ нСпосрСдствСнно с ΠΏΡ€ΠΈΠ±ΠΎΡ€ΠΎΠ², ΠΊΠ°ΠΊ структурированными, Ρ‚Π°ΠΊ ΠΈ Π½Π΅ структурированными, Π»ΠΈΠ±ΠΎ локально структурированными (Ρ‚ΠΎ Π΅ΡΡ‚ΡŒ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ локально ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΡ‚ΡŒ Π°Π½Π°Π»ΠΈΠ·, Π½ΠΎ Π² Π΄Π°Π½Π½ΠΎΠΌ Π²ΠΈΠ΄Π΅ Π½Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ Π°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π² совокупности с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ Π²ΠΈΠ΄Π°ΠΌΠΈ Π΄Π°Π½Π½Ρ‹Ρ…). Для получСния ΠΈΠ· Ρ‚Π°ΠΊΠΎΠ³ΠΎ Π½Π°Π±ΠΎΡ€Π° Π±ΠΎΠ»Π΅Π΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ‚ΠΈΠ²Π½Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ…, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‚ ΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°Ρ‚ΡŒ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ Π² процСссС эксплуатации мСстороТдСния, трСбуСтся ΠΏΡ€ΠΈΠ²Π»Π΅Ρ‡Π΅Π½ΠΈΠ΅ спСциалистов Ρ€Π°Π·Π½Ρ‹Ρ… областСй нСфтяной отрасли. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ Π²ΠΎΠ·Π½ΠΈΠΊΠ°Π΅Ρ‚ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈ Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ примСнСния Π½Π΅Π΄Π΅Ρ‚Π΅Ρ€ΠΌΠΈΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² Π°Π½Π°Π»ΠΈΠ·Π° ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Π΄Π°Π½Π½Ρ‹Ρ…. Π’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ рассмотрСно ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠ² машинного обучСния Π² Π·Π°Π΄Π°Ρ‡Π΅ опрСдСлСния Π½Π°Ρ‡Π°Π»ΡŒΠ½ΠΎΠΉ обводнСнности ΠΏΠΎ Π΄Π°Π½Π½Ρ‹ΠΌ гСофизичСских исслСдований скваТин. During operation of oil fields a large number of data is generated. These data can be as interpreted by the expert or received directly from devices, both structured, and not structured, or locally structured. Receiving from such data set of more informative data which allow to make decisions in use of the field requires involvement of experts of different areas of the oil industry. Therefore there is an opportunity and need of application of nondeterministic methods of the analysis of the obtained data. For example, such task is determination of initial water content for the designed well. In article application of methods of machine learning in a problem of determination of initial water content according to geophysical surveys of wells is considered
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